From 1e6be014466e07d3ba95b396d0ea64d11ac0a79d Mon Sep 17 00:00:00 2001 From: Bhumika Goyal Date: Tue, 17 Oct 2017 08:27:24 -0400 Subject: [PATCH] media: davinci: make function arguments const Make the function arguments of functions vpfe_{register/unregister}_ccdc_device const as the pointer dev does not modify the fields of the structure it points to. Also, declare the variable ccdc_dev const as it points to the same structure as dev but it does not modify the fields as well. Signed-off-by: Bhumika Goyal Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/davinci/ccdc_hw_device.h | 4 ++-- drivers/media/platform/davinci/vpfe_capture.c | 6 +++--- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/media/platform/davinci/ccdc_hw_device.h b/drivers/media/platform/davinci/ccdc_hw_device.h index f1b521045d64..3482178cbf01 100644 --- a/drivers/media/platform/davinci/ccdc_hw_device.h +++ b/drivers/media/platform/davinci/ccdc_hw_device.h @@ -82,8 +82,8 @@ struct ccdc_hw_device { }; /* Used by CCDC module to register & unregister with vpfe capture driver */ -int vpfe_register_ccdc_device(struct ccdc_hw_device *dev); -void vpfe_unregister_ccdc_device(struct ccdc_hw_device *dev); +int vpfe_register_ccdc_device(const struct ccdc_hw_device *dev); +void vpfe_unregister_ccdc_device(const struct ccdc_hw_device *dev); #endif #endif diff --git a/drivers/media/platform/davinci/vpfe_capture.c b/drivers/media/platform/davinci/vpfe_capture.c index 6792da16d9c7..7b3f6f8e3dc8 100644 --- a/drivers/media/platform/davinci/vpfe_capture.c +++ b/drivers/media/platform/davinci/vpfe_capture.c @@ -115,7 +115,7 @@ static struct vpfe_config_params config_params = { }; /* ccdc device registered */ -static struct ccdc_hw_device *ccdc_dev; +static const struct ccdc_hw_device *ccdc_dev; /* lock for accessing ccdc information */ static DEFINE_MUTEX(ccdc_lock); /* ccdc configuration */ @@ -203,7 +203,7 @@ static const struct vpfe_pixel_format *vpfe_lookup_pix_format(u32 pix_format) * vpfe_register_ccdc_device. CCDC module calls this to * register with vpfe capture */ -int vpfe_register_ccdc_device(struct ccdc_hw_device *dev) +int vpfe_register_ccdc_device(const struct ccdc_hw_device *dev) { int ret = 0; printk(KERN_NOTICE "vpfe_register_ccdc_device: %s\n", dev->name); @@ -259,7 +259,7 @@ EXPORT_SYMBOL(vpfe_register_ccdc_device); * vpfe_unregister_ccdc_device. CCDC module calls this to * unregister with vpfe capture */ -void vpfe_unregister_ccdc_device(struct ccdc_hw_device *dev) +void vpfe_unregister_ccdc_device(const struct ccdc_hw_device *dev) { if (!dev) { printk(KERN_ERR "invalid ccdc device ptr\n"); -- 2.30.2